GPII-1051: Moved initial styling work to universal

Moved the initial styling work for the preferences scoping to the Universal repository, which now contains the gpii oauth2 server.
GPII-1051: Fixing alignment of items

Fixed the alignment of the expansion toggle and the checkboxes.
GPII-1051: Adjusted the expansion toggle

Made it a link and decreased its size.
GPII-1051: Focus styling

Added focus styling to the checkboxes. Adjusted the size of the collapse/expand toggles.
GPII-1051: remove hover styling from toggle

Removed the hover styling from the collapse/expand toggle.
GPII-1051: Using OpenSans font
Merge branch 'GPII-17' into GPII-1051
GPII-1051: First pass at selectionTree component

Need to write more tests. Currently the data is all held in the DOM, but this may need to change to actually being a model on the component.
GPII-1051: Cleanup of shared css
GPII-1051: Updated markup structure
GPII-1036: Implementing Logout UI

Converted the logout placeholder to be a form for that posts to /logout. The server side has not yet been implemented.
Merge branch 'GPII-17' into GPII-1036
Merge remote-tracking branch 'jobara/GPII-1036' into GPII-1036
GPII-1036: OAuth2 logout server action
Merge branch 'GPII-17' into GPII-1036
Merge remote-tracking branch 'simon/GPII-1036' into GPII-1036
GPII-1036: Removed logout from authorization

Removed logout from the authorization page. This is a temporary measure until we can determine the most appropriate way to handle the redirects and etc needed for the logout workflow from this page.
GPII-1036: Adding back in the username